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AIPMT 2014 Physics and Chemistry Paper

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Question : 14

Total: 90

A certain number of spherical drops of a liquid of radius ' r ' coalesce to form a single drop of radius ' R ' and volume ' V '. If ' T ' is the surface tension of the liquid, then :

energy =4‌VT(‌
1
r
−‌
1
R
) is released
energy =3‌VT(‌
1
r
+‌
1
R
) is absorbed
energy =3‌VT(‌
1
r
−‌
1
R
) is released
Energy is neither released nor absorbed

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